free-stockdb
Local market data engine for Chinese A-share and ETF quant research
What it is
A local data service that syncs, cleans, and adjusts Chinese A-share and ETF price data (daily, minute, and tick bars) onto your own disk, then serves it for bulk queries, 39 built-in technical indicators, sector lookups, and backtesting. Data is stored in a compressed custom C++ time-series store and can be reached through a Python SDK, a local HTTP API, Excel/WPS macros, an HTML page, or an MCP endpoint for AI tools. Quant researchers running whole-market strategies use it to avoid rate-limited remote APIs and keep working offline.